Get rid of babel-polyfill for viamapi-client.

javascript/package.json

@@ -35,6 +35,7 @@
     "@babel/preset-env": "^7.1.0",
     "babel-loader": "^8.0.4",
     "babel-polyfill": "^6.26.0",
+    "core-js": "^2.5.7",
     "webpack": "^4.23.1",
     "webpack-cli": "^3.1.2"
   }

javascript/webpack.config.js

@@ -3,7 +3,7 @@ const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 module.exports = {
   mode: 'production',
   entry: {
-    'viamapi-client': ['babel-polyfill', './src/viamapi-client.js'],
+    'viamapi-client': ['core-js/fn/promise', './src/viamapi-client.js'],
     'viamapi-iframe': ['babel-polyfill', './src/viamapi-iframe.js'],
     'wopiapi-iframe': './src/wopiapi-iframe.js'
   },

javascript/yarn.lock

@@ -488,12 +488,6 @@
     js-levenshtein "^1.1.3"
     semver "^5.3.0"
 
-"@babel/runtime@^7.1.2":
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.1.2.tgz#81c89935f4647706fc54541145e6b4ecfef4b8e3"
-  dependencies:
-    regenerator-runtime "^0.12.0"
-
 "@babel/template@^7.1.0", "@babel/template@^7.1.2":
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
@@ -1142,7 +1136,7 @@ copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
 
-core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.4.0, core-js@^2.5.0, core-js@^2.5.7:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
 
@@ -2768,10 +2762,6 @@ regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
 
-regenerator-runtime@^0.12.0:
-  version "0.12.1"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz#fa1a71544764c036f8c49b13a08b2594c9f8a0de"
-
 regenerator-transform@^0.13.3:
   version "0.13.3"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.3.tgz#264bd9ff38a8ce24b06e0636496b2c856b57bcbb"